LIAS - Laser Warning Receiver System

LIAS is aa advanced threat warning system to detect, classify, identify and give warning of hostile laser threats aiming on the platform, in a very short time with high sensitivity. LlAS can activate the countermeasure systems available on the platform either directly or via a host computer.

LlAS is designed to detect almost all types of laser threats available in the world military inventory. Laser Range Finders (LRF), Laser Designators (LD) and Laser Beam Riders (LBR) threats operating on various optical bands can be detected by the system.

Thanks to the state-of-the-art technology, LlAS also delivers the threat alarms in a very short term which enables the pilot to employ the fastest counteraction and/or maneuver.

LlAS is comprised of one Processor Unit and 4 Sensor Units installed on the body of the platform. The open-architecture design of the system permits easy installation and integration on a helicopter or a transport aircraft.

Applications

Detects Enemy Laser Threats

Laser Range Finder (LRF)

Laser Target Designator (LTD)

Laser Beam Rider (LBR)

Designed and Qualified for Airborne Platforms

General Specifications

High Sensitivity

Fast Response Time

Threat Classification (LRF, LTD, LBR)

Threat Identification and Prioritization

(Via MDF-Mission Data File)

High Resolution Direction of Arrival (DOA) Detection

Detection of Pulsed and CW Modulated LBR

Optional Band IV (8-12 µm) Wavelength Coverage

360° Coverage in Azimuth

High Probability of Detection (PoD)

Very Low False Alarm Rate (FAR)

Threat Wavelength Band Detection

PRF (Pulse Repetition Frequency) Detection

Threat Tracking

Multiple Simultaneous Threat Detection and Tracking

Multiple MDF Capability

Data Recording Facility (Event and Pulse Parameters)

For Post Processing

Hardware and Software Blanking Interface

Zeroize Input for Erasing the Critical Data From Memory

CM (Counter-Measure) Activation Interface

High MTBF Figure

Interface to Host Computer

Test Equipment for O-Level Maintenance

Technical Specifications

​

​

​

​

​

Wavelength Coverage

Band I : 0.5 µm to 1.1 µm

Band II : 1.1 µm to 1.65 µm

Band III : 0.8 µm to 1.1 µm

Band IV : 8-12 µm (Optional)

​

Field of Regard

Azimuth : 360°

Elevation : > 80°

​

Direction of Arrival Accuracy

Band I-II : ≤ ±1° (rms)

Band III : ≤ ±10° (rms)

Band IV : ≤ ±22.5° (rms)

​

Probability of Detection

LRF (Band I-II-IV) : ≥ %95

LD (Band I-II-IV) : ≥ %95

LBR (Band III-IV) : ≥ %99

​

Communication Interface

MIL-STD-1553B

Fast Ethernet (100Mbit)

RS-422

​

Weight (kg)

Processor Unit : < 3.75

Sensor Unit : < 3.25

​

Size (mm)

Processor Unit : < 162x102x195

Sensor Unit : < 172x152x132

​

​

​

​

​

​

​

​

​

​

Environmental Conditions

​

Operating Temperature

-40°C to +60°C

Storage Temperature

-55°C to +85°C

Environmetal Spec

MIL-STD-810F

MIL-STD-461E

Note: All tolerances are within ±10%. Specifications may change without prior notice.